williams



(No Model.) M I 3' Sheets-Sheen i1.

. H. WILLIAMS.

MACHINE FOR MAKING TIMBER HANGERS. No. 383,265. Patented May 22, 1888.

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C. H. WILLIAMS. l

MACHINE FOR MAKING TIMBER RANGERS.-

(No Model.) I 8 4 `3 Sheets-Sheet 3.

C. H, WILLIAMS.

MACHINEl POR MAKING TIMBER IIANGBRS.` No. 383,265. Patented May 22, 1888 Nrrnn STATES PATEN CARMI H. WILLIAMS, OF NEW YORK, N. Y.

MACHINE FOR MAKING TllVlBER-HNGERS.

SPECIFICATION forming part of Letters Patent No. 383,265, dated May 22, 1888.

Application led July 29, 1887.

To all when?, it may concern.'

Be it known that I, @ARMI H. lVLLIAMsof the city and county of New York, in the State of New York, have invented a new and useful Improvement in Machines for Making Timber- Hangers, of which the following is a speeili cation.

In the construction of buildings the timbers, according to modern practice, are very frequently supported where they intersect each other by means of stirrups or hangers in the place where they have formerly more commonlybeen connected by tenons and mortises. These timber hangers or stirrups or bridleirons consist each Vof a piece of bar-iron bentso as to form a right-angled loop having its arms extending upward and twistedjust above their lower corners, so as to lie in the same plane with the width of the loop, and having the upper ends of the arms bent laterally, and then slightly downward to form hooks for engaging the top of the beam.

My invention relates to machines for making such hangers or bridleirons which comprise two bending members or dies,one consisting of a former, on the end of which the bar is to be bent, and which has its end wall and its side walls adjaeentte the end vertical, and beyond the vertical walls is flared outward at the sides to give twist to the bar, and the other member consisting of rollers having their peripheries in part straight and in part oblique or angular to correspond to the flarin g sides ofthe former, a slide carrying one of said bending members, and suitable mechanism or gearing for reciprocating such slide.

The machine so far as described is adapted only for making the rectangular bend or loop in the iron in which rests the beam to be supported; and my invention consists in a novel combination of parts, hereinafter described, whereby, in addition to forming the reetangular bend or loop in which the beam is to be hung, and forming the twist in the two arms, the ends of said arms are bent laterally downward or hooked,so that they may properly engage with the top of the beam to which the hanger is to be applied.

In the accompanying drawings, Figure l is a side View of a machine embodying my invention. Fig. 2 is a plan thereof. Fig. 3 is a Serial No.215,596. (No model.)

sectional elevation in a plane parallel to the plane of Fig. 1. Fig. L is a sectional elevation in a plane at right angles to the plane of Fig. l, and as indicated approximately by the dotted line .r x, Fig. 3. Fig. 5is a sectional elevation of a portion of the machine in the same plane as Fig, 3, but showing the slide in its inward position, and illustrating the operation of the vertically-moving plunger or slide which carries the bending-rollers for forming the hooked ends of the hanger. Fig. 6 is a transverse section of the slide, the former, the bending-rollers, and a portion of the frame, on about the plane indicated by the dotted line y y, Fig. 2. Fig. 7 is a plan of the former and rollers, showing also a portion of the frame. Fig. 8 is an inverted plan of one of the rollers having the peripheries in part oblique and in part straight or parallel with their axes, and Figs. 9 and l0 are elevations at right angles to each other of one of the completed hangers.

Similar letters or" reference designate corren spending parts in all the iigures.

By reference to Figs. Si and 10 it will be understood that the hanger is formed of a piece of straight bar-iron of considerable width and comparatively little thickness, which is bent in the direction of its thickness to iorm a rectangular or right-angled loop, a, and the upwardly-extending arms of which have formed in them a quarter-twist at the points a', so as to bring their upper portions into the same plane as the width of the loop, and the upper ends of these arms are bent laterally and then downward, as shown best in Fig. l0, to form the hooks c2, by which thehangerissuspended upon the top of a beam to support a second beam extending at right angles to the iirst in the square or righttangled loop c.

It is very desirable that the twist c should be formed from the back of the hanger-that is to say, that, looking at the hanger :in the view represented in Fig. 9, what are the back edges of` the bar should be bent gradually outward to form the twist, and no machine has ever been before made that will perform such work.

l wiil first describe what are the essential elements of my machine, and will then describe the mechanism for operating the several parts, and such other parts of the machine as may be Varied in construction without dea ICD parting from the essential principles of myinvention. Y

The parts which form the right angled loop a at the bottom of the hanger consist of a former, A, and two rotary twisting or bending rollers, B, and the former A may be considered as one bending member and the rollers B as another bending member, whereby the right-angled loop is produced. One of the two bending members (in this example the former A) is mounted in a slide, C, which is fitted to a slideway, c, formed in the main side frames, D, of the machine, and this slide C, with the former A arranged in vthe cavity c within it., is reciprocated from the rightto the left hand of Figs. l and 3, Fig. 3 showingitin a position toward the extreme left, and Fig. 5 showing the slide and former in their position toward the eXtreme right.

In Figs. 5, 6, and 7 I have illustrated the bar of iron, A', which forms the hanger, and it will be seen that the right-angled bend a is made around the inner end of the former, while the hooks e2 are made over the outer end of the slide as a former, as is shown in Fig. 5. It will be observed that the inner end of the former presents a substantially vertical wall, and the sides are also vertical immediately adjacent to the corners; but j ust beyond the vertical side walls the sides flare outward at the lower edge, as shown at e, so as to gradually change the surface of the former, on which the bar bears, from a vertical to a horizontal plane. The roller dies B are of peculiar form, as best shown in Fig. 8. They are mounted upon studs b, which are secured by nuts b in a portion of the main frame D, and are free to turn as the slide C is reciproeated. Attached to the slide is a bar, C', having its opposite edges formed as racks, and which engage with pinions or gear-teeth, b", formed integral with or secured to the rollers B. The boxes b2, wherein the studs b are journaled, are fitted in slots d, Yformed in the frame, and in these slots such boxes are adjustable by means of setserews d. The formerA may be of any desirable width to form the hanger, and may be interchangeably fit-ted to the machine, and when a former of greater width is introduced for forming awide hanger the rollersB should be adj usted away from each other, which may be done by introducing a wider rack-bar, C, in place of the one here shown, the screws d being relaxed sufficiently, after which said screws are set upto bring the gearteeth b home to bear on the rack. The upper surfaces of the rollers B present true circles, and the principal part of their peripheries namely, that designated by the letters in Fig. S-is straight or parallel with their axcs,\vhile the remaining part-namely, that designated by the letter s in Fig. 8-is oblique or angular, so as to conform to the flaring formation of the former A, whereby the quartertwists e are given to the bar. It will therefore be understood that when the baris heated and placed across theinner end of the former A in proper mid-position the slide G is moved inward or toward the right hand in Fig.,3, and the bar A being presented to the bending-rollers B, and the rollers being rotated positively at the same time by the engagement of the rack-bar C with their gear-teeth, the bar A will be bent so as to form the right-angled loop a and the two arms projecting therefrom in the same direction on opposite sides of the former A. By the continued movement of such former and the bar the oblique or angular portions s' of the rollers B will come opposite the ilaring portions t3 of the former, and the plane of the bar will be changed gradually from vertical to horizontal, thereby bringing the flat surface of the bar down upon the top of the slide C and in the same plane.

The main side portions of the frame D have formed in them channels orguideways cl2, which receive a vertically-moving cross-head or plunger, E, having at its lower end bending-rollers e, which come opposite the outwardly-extending arms of the bar, (shown in Fig. 7,) and when the slide G has moved inward beyond the vertical slideway d2 the plunger or crosshead E descends and by its rollers e bends the end portions of the bar A down upon the front ofthe slide C, as is shown in Fig. 5, after which the plunger or cross-head E aseends, leaving the bent ends ofthe bar in the position shown in Fig. 5.

Forward of the vertical slideway di, I have shown a roller, c', fitted to bearings which are adjustable by means of set-screws ci, and this roller may be adjusted upward so that the bottom of the slide as it moves forward will just clear it by the thickness ot' the bar from which the hanger is made. Consequently it will be seen that after the plunger or crosshead E has been raised the outward movement ofthe slide C will bring the downwardly-projecting ends of the bar upon the roller e, and will bend or hook such ends backward on the under side of the slide C.

As before stated, the former A is fitted to a cavity, c, in the slide C, and in such cavity are devices whereby the former may be raised or lowered-that is to say, whereby it may be depressed out of the hanger after the hanger has been formed thereon. As here represented, there is a cross shaft, f, upon which are eamsf, and which may be turned by a handle or crank, f2, at the side of the machine, and to permit the reciprocation of the slide C without any interference with the handle f2 the cam-shaftf passes through a slot, f3, in the side of the machine, as shown in Fig. 1, and which is of sufficient length to accommo date the reciprocating movement of such slide and the former. It' the hanger has been formed in the manner described, and the slide C has returned toits outermost position, as shown in Fig. 3, the former A is depressed below the level of the slide, and the completed hanger may then be slipped directly forward out of the machine.

Referring now to the mechanism here rep- IOS IIC

resented for operating the several parts of my machine in proper turn, it will be seen that upon the slide Gis a rack, g, and g is a sector upon the upper end of a lever, G, fulcrumed at f/2 near the bottom of the machine. The lever G is constructed with a cam, G', of peculiar formation,(best shown in Fig. 3,) into which enters a truolcroller, g, upon one side of a cam or disk, H, mounted upon the main shaft H, and in the lever G is a segmental slot, g4, which receives the shaft H through it and permits a swinging movement of the lever G transverse to the axes of the shaft. The ean1-disk H rotates in the direction indicated by the arrow shown in Fig. 3, and the trucleroller 'g3 constitutes in effect a crank, which enters the upward extension, g5, ot' the cam, and thereby gives the lever G and the slide C a comparativelylong and rapid move menttoward the rightof Fig. 3. Afterward the truclcroller passes down out ofthe projection g5 of the cam G, and the disk H makes nearly a half-revolution, while the cam-lever Gand the slide C remain in their inward positions or that corresponding to the position of the slide in Fig. 5. Upon the side of the canrdisk H, opposite to the tru cli-roller g3, is a cam-groove, g, or channel, which receives a truck-roller, gl, upon the lower end of a vertieally'sliding bar, g5, which bar slides in guides g, and with this sliding bar a sector-lever, G2, is connected by a link, g. The sector-lever G'l is fulcrumed at gw, and its sector g engages a rack, g, on the vertical plunger or cross-head E. During the dwell when the cam-lever G and slides C are in their eXtreme positions toward the right of Fig. 3, the cam-groove g acts upon thetruckroller 97 to raise thel bar g8 and depress the plunger or crosslhead E, after which the lever G is returned to the position shown in Fig. 3. The slide C is returned to the position also shown in said ligure, thereby completing the hooks a2 of the hanger.

I have here shown the shalt H as fitted to removable boxes h in the main side frames, D, of the machine, and as having upon it a gearwheel, H2, with which engages a pinion, H3, upon a short shaft, H, also carrying a gearwheel, H5, and with t-he gear-wheel H5 engages a pinion, H, upon a countenshaft, H7, which carriesthe fast and loose pulleys HE H9 for the reception of a driving-belt.

It will be seen that inasmuch as the twist a in the side bars or arms ofthe hanger is formed by the simple passage of the bar and former between the rollers or bending member B each one of the hangers will be formed :accurately to the pattern, and the exact desired shape may be given the twist.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is-

The combination, with two rollers mounted upon stationary but adjustable pivots and having their peripheries in part straight and parallel with their axes and in part oblique or angular, of a slide movable between said rollers and geared by a rack and pinion with them, a former having its end wall and portions of its sides adjacent thereto vertical, and having its sides beyond said vertical portions made flaring or oblique to form the twist in the iron, the said former being tted to a cavity in the slide and vertically movable in such cavity, so as to depress the former below the top of the slide when desired, the end of said slide serving as a former over which to bend the hooked ends of the bar, a roller past which said end of the slide moves in opposite directions, and a vertically-movable plunger carrying a bending roll or rolls, and which is movable downward past the end of the slide when the latter is in its inward position, substantially as here in described.

@ARMI H. lVlLlhlAllIS.

Witnesses:

MINERT LINDEMAN, FREDK. I-IAYNns. 

